Answer:
B
Step-by-step explanation:
We are given the equation:
And that:
And we want to find the value of <em>y</em> / <em>x</em>.
To start, subtract <em>x</em> from both sides in the first equation:
Divide both sides by <em>x: </em>
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Simplify:
Next, in the second equation, divide everything by two:
Substitute:
Simplify:
From the modified second equation, we can multipy both sides by 1/3:
Substitute:
Subtract:
Therefore, our answer is B.